Harley-Davidson XL 2003 Service Manual
![Harley-Davidson XL 2003 Motorcycle manual cover](/images/fBQkkWFsaQFnThDSOijIwxxb/thumbs/thumb175x175.webp)
To check the oil level, warm up the engine for about 5 minutes, then turn it off and let it sit for a minute. Place the bike on a level surface and use the dipstick on the oil tank to measure the oil level. Ensure the oil is between the "Full" and "Add" marks.
For optimal performance, use a high-quality 20W-50 motorcycle oil that meets or exceeds the specifications set by Harley-Davidson. Always refer to the owner’s manual for specific recommendations.
First, check the battery connections and ensure they are tight and free of corrosion. Verify the battery is fully charged. Inspect the spark plugs and replace them if they are worn or fouled. Check the fuel system for blockages or leaks.
The recommended tire pressure for a 2003 Harley-Davidson XL varies depending on the tire brand and model. However, generally, the front tire should be around 30 psi and the rear tire around 36 psi. Always refer to the tire manufacturer’s specifications.
The air filter should be inspected every 5,000 miles and replaced every 10,000 miles, or more frequently if you ride in dusty or harsh conditions.
Check the coolant levels and ensure there are no leaks in the system. Make sure the radiator is clean and not obstructed. Consider checking the thermostat and water pump for proper operation.
To adjust the clutch, locate the clutch cable adjuster and loosen the lock nut. Turn the adjuster to achieve the desired free play at the clutch lever, typically about 1/16 to 1/8 inch. Tighten the lock nut once adjustment is complete.
Signs include squeaking or grinding noises when braking, decreased braking performance, and a spongy brake lever feel. Inspect the brake pads visually; if they are less than 1/8 inch thick, replace them.
Keep the battery terminals clean and free from corrosion. Regularly check the charge level and recharge as needed using a motorcycle battery charger. During long periods of inactivity, use a battery tender to maintain charge.
Check tire pressure and tread condition, inspect the brakes and controls for proper function, verify all lights are operational, and ensure the oil and fuel levels are adequate. Also, look for any leaks or loose fasteners.